Head to head
2
Hard
1
1
Clay
0
1
Grass
0
0
Carpet
2
Karol Kucera's wins on the left · Sjeng Schalken's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 2002 | Australian Open | Hard | R128 | Karol Kucera | 6-1 6-4 1-6 6-1 |
| 2000 | Monte Carlo Masters | Clay | R16 | Karol Kucera | 6-2 6-4 |
| 1999 | Paris Masters | Carpet | R32 | Sjeng Schalken | 6-3 6-4 |
| 1999 | Stuttgart Masters | Hard | R32 | Sjeng Schalken | 7-5 6-1 |
| 1999 | 's-Hertogenbosch | Grass | R16 | Karol Kucera | 7-5 6-2 |
| 1998 | Sydney Outdoor | Hard | R32 | Karol Kucera | 6-2 6-2 |
| 1995 | Rotterdam | Carpet | R32 | Sjeng Schalken | 6-4 6-7(2) 6-3 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.